Centrifugal casting machine for casting hollow metal bodies



Dec. 4, 1934. c. D. BARR ET AL 1,933,431

CENTRIFUGAL CAST ING MACHINE FOR CASTING HOLLOW METAL BODIES Filed Jan. 12, 1932 2 Sheets-Sheet l INVENTORS. CZARE/VCE 2.54%. S TE'PHE/V D. MOXLEK BY Dec. 4, 1934. C D BARR ET AL 1,983,431

CENTRIFUGAL GAS TING MACHINE FOR CASTING HOLLOW METAL BOD IE5 Filed Jan. 12, 1932 2 SheetsSheet 2 IN V EN TORS CZ 44E c5 27. 54/76.

S-TEPHEA/ D. MOXLEK BY Patented Dec.- 4, 1934 UNITED STATES PATENT OFFICE 1,983,431 OENTRIFUGAL CASTING MACHINE FOR This invention CASTING HOLLO W METAL BODIES Delaware Application January 12, 1932, Serial No. 586,220

4 Claims.

relates to centrifugal casting machines for casting hollow metal bodies, such as cast-iron pipe in refractory or sand-lined flasks,

and wherein a separate flask is employed for each cast.

In casting machines of this type, the flask is usually supported upon rollers and is rotated by means of an electric motor, having a clutch upon its shaft which in ay be removably coupled to the curately aline the clutch-face with the end of the flask, or to provide a construction wherein the magnetic clutch properly alined with flasks of different diameter.

The object of the present invention is to provide a centrifugal casting machine of the type referred to that may accommodate flasks of different diameter, and wherein the'motor and the magnetic clutch are so mounted upon the bed of the machine that they may be readily adjusted both vertically and laterally to bring the magnetic face of the clutch into proper alinement with an end of the flask,

may be so mounted as to'be the said motor and its clutch .mounting being so constructed and arranged that they may be adjusted vertically and laterally to aline the clutch face with an end of the flask.

In order to enable others to construct and use the said invention, we will now proceed to describe the same in detail, refer- .ence being had for this purpose to the accompanying drawings, wherein,-

Fig. 1 is a side elevation of a part of a. centrifugal casting machine, having our invention embodied therein,

Fig. 2 is a top plan view, and Fig. 3 is an end-elevation.

In the accompanying drawings, the reference character 1 designates the heavy metal basecasting of a centrifugal casting machine which is I usually supported tion. The machine also embodies two pairs of spaced flask-supp upon concrete or other foundaorting rollers 2, for supporting the flask 3 for rotation; the reference character 4 indicating the end of the flask against which the face of a magnetic clutch 5 makes direct contact.

jections 6 and 6a,

the projections 6 being located adjacent the end of the extension 1a, and spaced apart, as more cl projections 6a are early shown in Fig. 2, and the likewise spaced apart, as shown skilledin the art in Fig. 2, and are arranged adjacent the end of the casting machine proper.

The reference numeral '7 indicates an electric motor having its shaft 8 joumaled in bearings 9 and upon the forward end of which the magnetic clutch 5 is secured. The motor shaft 8 is preferably made in alined sections, which sections are preferably connected together by a flexible coupling- 10 of any preferred type.

The motor 7 and its shaft bearings 9 are mounted upon an auxiliary frame, comprising a metal plate 12, secured to the base casting by means of bolts 13 and 14, the bolts 13 passing thru lateral frame extensions 12 at opposite sides of the frame 12 adjacent the flask 4, of the machine, and the bolt 14 passing through the extreme end of the auxiliary frame 12 and the base extension 1a, as more clearly shown in Fig. 2.

The auxiliary frame 12 is supported upon interposed shims or filler blocks 15, removably mounted upon the base extension 1a adjacent the bolts 13 and 14, the thickness thereof determining the height of the auxiliary frame 12 and the position of the magnetic clutch 5, relative to the end of the flask 3. By interchanging the filler blocks 15 and substituting thinner or thicker blocks as occasion may demand, it will be apparent that the face of the magnetic clutch 5 may be accurately adjusted and centered to cooperate with flasks of different diameter.

In order to provide for lateral adjustment of the auxiliary frame 12, to more accurately aline the face of the magnetic clutch 5 with the end of a flask, we provide each of the upstanding pro- A jections 6 and 6a, with bolts 16, the inner ends of which may be brought into engagement with the opposite sides of the auxiliary frame 12, and the bolts then set by means of lock nuts 17. In the construction shown, the bolts 16 which pass through the projections 6a, may contact with the lateral extensions 12' of the auxiliary frame 12, and those which pass through the projections 6 engage the upstanding flanges 18 of the auxiliary frame 12.

It will be apparent from the foregoing that the auxiliary frame 12, which carries the motor 7, shaft 8, bearings 9, and the magnetic clutch 5, may be vertically and laterally adjusted to bring the face of the clutch into accurate alinement with the ends of flasks of different size, thus adapting one machine to the manufacture of pipes of various sizes.

While we have illustrated and described a preferred embodiment of our invention, we do not wish to be understood as limiting ourselves to the various details shown, as obviously these may be varied without departing from the spirit of the invention, which resides broadly in mount= ing the magnetic clutch and its driving motor upon a support which may be adjusted both ver tically and laterally for the purposes stated.

What we claim is:-

l. In a centrifugal casting machine having a base platform and means for supporting a flask for rotation, means for driving the flask including a motor-driven magnetic clutch having a face adapted to contact with an end of a supported flask, a bodily movable auxiliary platform supported upon the base platform and constituting a support for the clutch-driving motor located at one endof and in alinement with the casting machine, a driving motor and motor-shaft bearings carried by said auxiliary platform and means for adjusting the auxiliary platform vertically and laterally to center the face of the clutch relative to the end of the supported flask, and means to positively lock said last means against movement during rotation of the clutch and flask.

2. In a.- centrifugal casting machine having means for supporting-a. flask for rotation and a. bed plate, a bodily movable platform to support an electric motor, said motor having a magnetic clutch secured to its shaft, means to adjust the position of said motor, shaft and clutch to establish the axis of the clutch in alinement with the axis of the flask,'said means comprising interchangeable flller' blocks between the auxiliary platform and bed plate to establish the axisof the clutch in alinement with the axes of the flask in a horizontal plane, upstanding members at opposite sides of the bed plate between which the auxiliary platform is supported on the flller blocks, screw threaded elements mounted through screw threaded openings in said members to contact the sides of said platform and operable to move said platform laterally to establish the axes of'the clutch and flask in a-common vertical plane.

3. In a centrifugal eating machine having means for supporting a dash for rotation and a bed plate, a bodily movable platform to support an electric motor, said motor having a magnetic clutch secured to its shaft, means to adjust the position of said motor, shaft and clutch to estab= lish the axis of the clutch in alinement with the axis or" the flask, said means comprising inter changeable filler blocks between the'auxiliary platform and bed plate to establish the axis of the clutch in alinement with the axis of the flask in a horizontal plane, upstanding members at opposite sides of the bed plate between which the auxiliary platform is supported on the filler blocks, screw threaded elements mounted through screw threaded openings in said members to contact the sides of said platform and operable to move said platform laterally to establish the axes of the clutch and flask in a. common vertical plane, the sides of said platform confronting said members and elements being provided with upstanding flanges for engagement by said screw threaded elements.

4. In a. centrifugal casting machine, an adjust able supporting means for a clutch and motor to rotate the flask of the centrifugal casting ma.- chine, comprising a bed plate, a bodily movable platform to support the motor and clutch, interchangeable blocks between the platform and bed plate to establish the axis of the clutch in alinement with the axis of the flask in a horizontal plane, upstanding members on the bed plate at opposite sides thereof and between which the platform is located, screw threaded elements mountedthrough screw threaded openings in said members to contact the sides of said platform and operable to move said platform laterally to establish the axes of the clutch and flask in a common vertical plane, and means to lock said elements in adjusted position during rotation of the flask.

CLARENCE D. BARR. STEPHEN D. MOXLEY. 

